The James Webb Telescope Is Changing Astronomers’ Understanding of the Ancient Cosmos
Astronomers are using the James Webb Space Telescope to investigate 'little red dots,' mysterious objects found in the early universe that challenge existing astrophysical models. New theories suggest these could be black holes shrouded in gas or entirely new types of cosmic structures.
Mason, an astrophysicist at the Cosmic Dawn Center in Copenhagen, has lately been filling pages with sketches of “little red dots,” perplexing objects discovered by the hundreds in images from the James Webb Space Telescope (JWST). Little red dots were never seen before the telescope came online in 2022. But we now know that they started to appear in significant numbers roughly 650 million years after the Big Bang.
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